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3 years ago

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Mathematics

1 answer:

Firlakuza [10]3 years ago

6 0

Answer:

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The probability of an event - picking teams. About (a) 10 kids are randomly grouped into an A team with five kids and a B team w

LuckyWell [14K]

Answer: The required probability is $\dfrac{4}{9}$

Step-by-step explanation:

Since we have given that

Number of kids = 10

Number of kids in Team A = 5

Number of kids in Team B = 5

There are three kids in the group, Alex and his two best friends Jose and Carl.

So, number of favourable outcome is given by

$2(\dfrac{8!}{3!\times 5!})$

Total number of outcomes is given by

$\dfrac{10!}{5!\times 5!}$

So, the probability that Alex ends up on the same team with at least one of his two best friends is given by

$\dfrac{2(\dfrac{8!}{5!\times 3!)}}{\dfrac{10!}{5!\times 5!}}\\\\=2\times \dfrac{8!}{3!}\times \dfrac{5!}{10!}\\\\=\dfrac{4}{9}$

Hence, the required probability is $\dfrac{4}{9}$

3 0

3 years ago

F(x) = –3x² - 6x +1<br><br> Find f(8)

MAXImum [283]

Answer:

-239

Step-by-step explanation:

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4 years ago

Please help me i really need help please

maw [93]

Answer:

39°

Step-by-step explanation:

IM assuming xyz is a triangle

180 - 113 - 28 = 67 - 28 = 39

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3 years ago

Y=1/2×-16 y=-2/3×+12 what is value of x ?

larisa86 [58]

Answer:

Is equal 54

Step-by-step explanation:

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3 years ago

If f(x)=3x-2 and g(x)=2x+1 find(f-g)(x)

Solnce55 [7]

Answer:

(f-g)(x) = x-3

Step-by-step explanation:

f(x)=3x-2

g(x)=2x+1

(f-g)(x)= 3x-2 - ( 2x+1)

Distribute the minus sign

3x -2 -2x -1

Combine like terms

x-3

4 0

3 years ago